SU453959A1 - Wind tunnel perforated working portion - Google Patents

Wind tunnel perforated working portion

Info

Publication number
SU453959A1
SU453959A1 SU7301867631A SU1867631A SU453959A1 SU 453959 A1 SU453959 A1 SU 453959A1 SU 7301867631 A SU7301867631 A SU 7301867631A SU 1867631 A SU1867631 A SU 1867631A SU 453959 A1 SU453959 A1 SU 453959A1
Authority
SU
USSR - Soviet Union
Prior art keywords
working part
perforated
wind tunnel
grid
working
Prior art date
Application number
SU7301867631A
Other languages
Russian (ru)
Inventor
В.Р. Бертынь
А.В. Подмазов
Original Assignee
Bertyn V R
Podmazov A V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bertyn V R, Podmazov A V filed Critical Bertyn V R
Priority to SU7301867631A priority Critical patent/SU453959A1/en
Application granted granted Critical
Publication of SU453959A1 publication Critical patent/SU453959A1/en

Links

Description

(54) ПЕРФОРИРОВАННАЯ РАБОЧАЯ ЧАСТЬ АЭРОДИНАМИЧЕСКОЙ(54) PERFORATED WORKING PART AERODYNAMIC

ТРУБЫPIPES

Claims (1)

Изобретение относитс  к области экспериментальной аэродинамики, в частности к перфорированным рабочим част м околозвуковых и сверхзвуковых аэродинамических труб. Известна перфорированна  рабоча  часть аэр динамической трубы, содержаща  панели с от версти ми перфорации. Однако такие рабочие части способствуют возникновению акустических помех, которые создают дополнительные оптические помехи в поле теневого прибора в виде нестационарной сетки линий возмущени . В предлагаемой перфорированной рабочей части аэродинамической трубы в отверсти х перфорации со стороны .потока заподлицо с поверхностью рабочей часта установлена сетка. На чертеже приведена схема перфорированной рабочей части. Рабоча  часть аэродинамической трубы I об разована перфорированными панел ми 2, а которых выполнены сквозные отверсти  3 перфо рации, закрытые со стороны рабочей части сеткой 4. Эта сетка установлена заподлицо с поверхнэстью рабочей части. В процессе работы аэродинамической трубы при перетекании воздуха из рабочей части в окружающую камеру 5 установленна  б отверсти х перфорадии сетка преп тствует возникновению крупномасштабных возмущешй, привод щих к возникновению нестационарных оптических и акустических помех в рабочей часта трубы . Формула изобретени  Перфорированна  рабоча  часть аэродинамической трубы, содержаща  панели с отверсти ми перфорации, отличающа с  тем, что, с целью уменьшени  акустических помех, в отверсти х перфорации со CTqroHbi потока заподлицо с поверхностью рабочей части устанавлена сетка.The invention relates to the field of experimental aerodynamics, in particular to perforated working parts of transonic and supersonic wind tunnels. A known perforated working part aa of a dynamic tube containing panels with alternating perforations. However, such working parts contribute to the occurrence of acoustic interference, which creates additional optical interference in the field of the shadow device in the form of a transient grid of disturbance lines. In the proposed perforated working part of the wind tunnel, a mesh is installed in the perforation holes on the side of the flow flush with the surface of the working part. The drawing shows a diagram of the perforated working part. The working part of the wind tunnel I is formed by perforated panels 2, and which have through holes 3 of the perforations closed by the grid 4 on the side of the working part. This grid is flush with the surface of the working part. When the wind tunnel is in operation, when the air flow from the working part to the surrounding chamber 5, the mesh installed in the perforations of the perforation prevents large-scale disturbances resulting in unsteady optical and acoustic interference in the working part of the pipe. The perforated working part of the wind tunnel, containing perforated panels, characterized in that, in order to reduce acoustic interference, a grid is installed in the perforation holes with CTqroHbi flow flush with the surface of the working part. tt .. //////)v//////////////////) v //////////// ЩU vv x x
SU7301867631A 1973-01-08 1973-01-08 Wind tunnel perforated working portion SU453959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7301867631A SU453959A1 (en) 1973-01-08 1973-01-08 Wind tunnel perforated working portion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7301867631A SU453959A1 (en) 1973-01-08 1973-01-08 Wind tunnel perforated working portion

Publications (1)

Publication Number Publication Date
SU453959A1 true SU453959A1 (en) 1978-09-25

Family

ID=20538023

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7301867631A SU453959A1 (en) 1973-01-08 1973-01-08 Wind tunnel perforated working portion

Country Status (1)

Country Link
SU (1) SU453959A1 (en)

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